<template>
  <view>
    <view class="my-settle-container">
      <label class="radio" @click="changeAllState">
        <radio color="#c00000" :checked="isFullchecked" /><text>全选</text>
      </label>
      
      <view class="amount-box">
        合计:<view class="amount-number">￥<text class="amount">{{checkedGoodsAmount}}</text></view>
      </view>
      
      <view class="btn-settle" @click="settlement">
        <view  v-if="checkedCount !== 0">结算({{checkedCount}})</view>
        <view  v-else>结算</view>
      </view>
    </view>
  </view>
</template>

<script>
  import { mapGetters, mapMutations, mapState } from 'vuex'
  export default {
    name:"my-settle",
    data() {
      return {
        // 倒计时的秒数
        seconds: 3,
        timer: null
      };
    },
    computed: {
      ...mapGetters('m_cart', ['checkedCount', 'total', 'checkedGoodsAmount']),
      // addstr 是详细的收货地址
      ...mapGetters('m_user', ['addstr']),
      ...mapState('m_user', ['token']),
      ...mapState('m_cart', ['cart']),
      isFullchecked() {
        return this.total === this.checkedCount && this.total !== 0
      }
    },
    methods: {
      ...mapMutations('m_cart', ['updateAllGoodsState']),
      ...mapMutations('m_user', ['updateRedirectInfo']),
      changeAllState() {
        // console.log(!this.isFullchecked);
        this.updateAllGoodsState(!this.isFullchecked)
      },
      settlement() {
        // 1. 先判断是否勾选了要结算的商品
          if (!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')
        
          // 2. 再判断用户是否选择了收货地址
          if (!this.addstr) return uni.$showMsg('请选择收货地址！')
        
          // 3. 最后判断用户是否登录了，如果没有登录，则调用 delayNavigate() 进行倒计时的导航跳转
            // if (!this.token) return uni.$showMsg('请先登录！')
            if (!this.token) return this.delayNavigate()
            
             // 4. 实现微信支付功能
              this.payOrder()
      },
      showTips(n) {
        uni.showToast({
          title: '请登录后再结算！' + n + ' 秒后自动跳转到登录页',
          icon: 'none',
          // 为页面添加透明遮罩，防止点击穿透
          mask: true,
          duration: 1500
        })
      },
      // 延迟导航到 my 页面
      delayNavigate() {
        this.seconds = 3
        this.showTips(this.seconds)
      
        // 1. 将定时器的 Id 存储到 timer 中
        this.timer = setInterval(() => {
          this.seconds--
      
          // 2. 判断秒数是否 <= 0
          if (this.seconds <= 0) {
            // 2.1 清除定时器
            clearInterval(this.timer)
      
            // 2.2 跳转到 my 页面
            uni.switchTab({
              url: '/pages/my/my',
              success: () => {
                this.updateRedirectInfo({
                  openType: 'switchTab',
                  from: '/pages/cart/cart'
                })
              }
            })
      
            // 2.3 终止后续代码的运行（当秒数为 0 时，不再展示 toast 提示消息）
            return
          }
      
          this.showTips(this.seconds)
        }, 1000)
      },
     async payOrder() {
        const orderInfo = {
           // 开发期间，注释掉真实的订单价格，
          // order_price: this.checkedCount
          order_price: 0.01,
          consignee_addr: this.addstr,
          goods: this.cart.filter(x => x.goods_state).map(x => ({
            goods_id: x.goods_id,
            goods_number: x.goods_count,
            goods_price: x.goods_price
          }))
        }
        const { data:res } = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
        // console.log(res);
        if(res.meta.status !== 200) return uni.$showMsg('创建订单失败！')
        const orderNumber = res.message.order_number
        // console.log(orderNumber)
        const { data: res2 } = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', {order_number: orderNumber})
        console.log(res2);
        if(res.meta.status !== 200) return uni.$showMsg('预付订单生成失败！')
        // 得到订单支付相关的必要参数
        const payInfo = res2.message.pay
        // console.log(payInfo);
        // 3. 发起微信支付
       // 3.1 调用 uni.requestPayment() 发起微信支付
       const [err, succ] = await uni.requestPayment(payInfo)
       if(err) return uni.$showMsg('订单未支付！')
       // 完成了支付，进一步查询支付的结果
       const { data: res3 } = await uni.$http.post('/api/public/v1/my/orders/chkOrder', {order_number: orderNumber})
       // 检测到订单未支付
       console.log(res3);
       if(res.meta.status !== 200) return uni.$showMsg('订单未支付！')
       uni.showToast({
         title: '支付成功！',
         icon: 'success'
       })
      }
    }
  }
</script>

<style lang="scss">
.my-settle-container {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50px;
  background-color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 5px;
  font-size: 14px;
  
  .radio {
    display: flex;
    align-items: center;
  }
  
  
  .amount-box{
    color: #000;
    display: flex;
    align-items: center;
    vertical-align: top;
    .amount-number {
      color: #c00000;
    }
    .amount {
      font-size: 20px;
      font-weight: 600;
    }
  }
  
  
  .btn-settle {
    height: 50px;
    min-width: 100px;
    background-color: #c00000;
    color: #fff;
    line-height: 50px;
    text-align: center;
    padding: 0 10px;
    font-weight: 600;
  }
}
</style>